From 678f102662bbd6a209a22dcd6c36fe99dff46330 Mon Sep 17 00:00:00 2001
From: Dusty Mabe <dusty@dustymabe.com>
Date: Wed, 13 Aug 2025 22:47:53 -0400
Subject: [PATCH] cmd-osbuild: add comment for relevance of rootful codepath

This came up in the prior code review [1] and we agreed to add the
comment as a followon PR.

[1] https://github.com/coreos/coreos-assembler/pull/4251#discussion_r2273583462
---
 src/cmd-osbuild | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/cmd-osbuild b/src/cmd-osbuild
index 23862ceb22..b3594584f8 100755
--- a/src/cmd-osbuild
+++ b/src/cmd-osbuild
@@ -398,7 +398,10 @@ main() {
 
     outdir=$(mktemp -p "${tmp_builddir}" -d)
     if has_privileges && [ "${COSA_NO_KVM:-}" == "1" ]; then
-        cmd="env" # run outside of supermin if we are root already
+        # Run outside of supermin if we are root already. This is useful
+        # mostly on riscv where /dev/kvm isn't really supported by any
+        # hardware right now (2025/08).
+        cmd="env"
     else
         cmd="runvm_with_cache"
     fi